Following the June 2015 meeting of the National Committee on Uniform Traffic Control Devices (NCUTCD) a letter was sent from NCUTCD to the then FHWA Deputy Administrator Gregory G. Nadeau, regarding the use of new traffic control devices that are not included in the MUTCD. On September 28 Mr. Nadeau, now the FHWA Administrator, responded.

The links below contain the NCUTCD Letter, Mr. Nadeau’s response and a link to the FHWA: